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Littelfuse 046002.5ER 2.5 A Slo-Blo® / Time-Lag (T) PICO® SMF 460 – Tape & Reel ER
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pLittelfuse 046002.5ER — integrated circuit, PICO® SMF surface-mount fuse; Tape amp; Reel, 125 V./p
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Littelfuse 046002.5ER 2.5 A Slo-Blo® / Time-Lag (T) PICO® SMF 460 – Tape & Reel ER
Built by Littelfuse, the 046002.5ER carries 2.5 A, rated 125 VAC/VDC, uses a time-delay element.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Manufacturer / Series | Littelfuse / PICO® SMF 460 |
| Part number | 046002.5ER |
| Fuse characteristic | Slo-Blo® / Time-Lag (T) |
| Rated current | 2.5 A |
| Rated voltage | 125 VAC/VDC |
| Interrupting capability | 50 A @ 125 VAC/VDC |
| Package | PICO® SMF surface-mount fuse; Tape & Reel |
| Mounting method | Surface Mount (SMD) |
| Dimensions | 8.26 × 4.32 × 3.05 mm |
| Lead pitch | N/A (SMD) |
| Operating temperature | -55°C to +125°C |
| Approvals | UL E10480; CSA 29862; PSE NBK030205-E10480B |
| Standards / compliance | UL Recognized; CSA; PSE (1–5A); RoHS |
| Environmental | RoHS compliant; halogen free |
| Nominal cold resistance | 0.052 Ω |
| Nominal melting I²t | 13 A²s |
| Packaging / order code | ER: Tape & Reel, 2,500 pcs; SMD terminals |
| Product status | Verify current orderability with Littelfuse / authorized distribution |
Selection Notes
- Interrupting capability is 50 A @ 125 VAC/VDC — confirm the circuit's prospective fault current stays below this.
- Time-delay element rides through motor starting and capacitive inrush without nuisance opening.
- Startup surges of several times rated current are tolerated for a short window.
- Working voltage must stay at or below 125 VAC/VDC; a lower-rated part is not a safe substitute.
- Do not upsize beyond 2.5 A to stop nuisance trips — fix the cause instead.
Typical Applications
Engineers usually specify it for these duties:
- EV
Part Number and Packing
Order code 046002.5ER from Littelfuse, supplied in PICO® SMF surface-mount fuse; Tape & Reel. Confirm the exact suffix before release.
Q&A
What are the ratings of the 046002.5ER?
2.5 A continuous at 125 VAC/VDC, interrupting rating 50 A @ 125 VAC/VDC.
Is the 046002.5ER fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the 046002.5ER be used on a higher fault-current circuit?
No — its interrupting rating is 50 A @ 125 VAC/VDC. Choose a part whose breaking capacity exceeds the prospective fault current.
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